GPU Comparison

A

AMD

RADEON

AMD Radeon R5 A255

CORE STATE Topaz

VRAM 1024 MB

CLOCK SPEED 940 MHz

TDP —

BUS WIDTH 128 bit

ARCHITECTURE GCN 3.0

nm

PROCESS 28 nm

LAUNCH DATE —

VS

NVIDIA

GEFORCE

GeForce RTX 5090 Mobile

CORE STATE GB203

VRAM 24 GB

CLOCK SPEED 1515 MHz

TDP 95 W

BUS WIDTH 256 bit

ARCHITECTURE Blackwell 2.0

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

N/A

5,871

geekbench_opencl

N/A

201,834

geekbench_vulkan

N/A

198,405

passmark_directx_10

N/A

183

passmark_directx_11

N/A

269

passmark_directx_12

N/A

138

passmark_directx_9

N/A

324

passmark_g2d

N/A

1,057

passmark_g3d

N/A

30,034

passmark_gpu_compute

N/A

13,401

DETAILED SPECIFICATIONS

SPECIFICATION

R5 A255

RTX 5090 Mobile

Core Specs

Shading Units

384

10,496 +2633.3%

Shaders

384

10,496 +2633.3%

TMUs

24

328 +1266.7%

ROPs

8

112 +1300.0%

Compute Units

6

—

SM Count

—

82

Clocks

Base Clock

925 MHz

990 MHz

Boost Clock

940 MHz

1515 MHz

Memory Clock

1000 MHz 4 Gbps effective

1750 MHz 28 Gbps effective

Memory

Memory Size

1024 MB

24 GB

VRAM (MB)

1,024

24,576 +2300.0%

Memory Type

GDDR5

GDDR7

Memory Bus

128 bit

256 bit

Bandwidth

64.00 GB/s

896.0 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB (per SM)

L2 Cache

256 KB

64 MB

Performance

Pixel Rate

7.520 GPixel/s

169.7 GPixel/s

Texture Rate

22.56 GTexel/s

496.9 GTexel/s

FP32 (TFLOPS)

721.9 GFLOPS

31.80 TFLOPS

FP64 (TFLOPS)

—

496.9 GFLOPS (1:64)

FP16 (TFLOPS)

—

31.80 TFLOPS (1:1)

AI/RT

RT Cores

—

82

Tensor Cores

—

328

Power

TDP

—

95 W

TDP (W)

—

95

Power Connectors

—

None

Architecture

Architecture

GCN 3.0

Blackwell 2.0

GPU Name

Topaz

GB203

Generation

All-In-One (Rx 200)

GeForce 50 Mobile

Process Size

28 nm

5 nm

Transistors

1,550 million

45,600 million

Die Size

125 mm²

378 mm²

Foundry

TSMC

TSMC

Density

12.4M / mm²

120.6M / mm²

API Support

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1

3.0

CUDA

—

12.0

Shader Model

6.5

6.8

Physical

Slot Width

—

IGP

Outputs

—

Portable Device Dependent

Bus Interface

PCIe 3.0 x8

PCIe 5.0 x16

Other

Production

End-of-life

Active

Predecessor

—

GeForce 40 Mobile

View Radeon R5 A255 Details View GeForce RTX 5090 Mobile Details